./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-47.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b982617b4eafec7cbb1a277d4cd75e5591003436ed1218fbd6f7cc65704fea2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:58:53,977 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:58:54,114 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-24 23:58:54,125 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:58:54,127 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:58:54,178 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:58:54,179 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:58:54,179 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:58:54,180 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:58:54,188 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:58:54,188 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:58:54,189 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:58:54,189 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:58:54,191 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:58:54,192 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:58:54,192 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:58:54,193 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:58:54,193 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:58:54,194 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:58:54,194 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:58:54,195 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:58:54,196 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:58:54,197 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:58:54,197 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:58:54,198 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:58:54,198 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:58:54,199 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:58:54,199 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:58:54,200 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:58:54,200 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:58:54,202 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:58:54,202 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:58:54,202 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:58:54,203 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:58:54,203 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:58:54,204 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:58:54,204 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:58:54,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:58:54,205 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:58:54,205 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:58:54,205 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:58:54,206 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:58:54,207 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:58:54,207 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:58:54,208 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:58:54,208 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:58:54,208 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:58:54,209 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b982617b4eafec7cbb1a277d4cd75e5591003436ed1218fbd6f7cc65704fea2 [2023-11-24 23:58:54,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:58:54,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:58:54,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:58:54,534 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:58:54,534 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:58:54,536 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-47.i [2023-11-24 23:58:57,765 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:58:58,009 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:58:58,010 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-47.i [2023-11-24 23:58:58,021 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/data/38a1368fc/6f34d917ba114dc39060f20e57550c49/FLAG3809905bc [2023-11-24 23:58:58,040 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/data/38a1368fc/6f34d917ba114dc39060f20e57550c49 [2023-11-24 23:58:58,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:58:58,053 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:58:58,055 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:58:58,055 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:58:58,061 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:58:58,062 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:58:58" (1/1) ... [2023-11-24 23:58:58,063 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6750a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:58, skipping insertion in model container [2023-11-24 23:58:58,064 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:58:58" (1/1) ... [2023-11-24 23:58:58,107 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:58:58,306 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-47.i[916,929] [2023-11-24 23:58:58,381 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:58:58,404 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:58:58,419 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-47.i[916,929] [2023-11-24 23:58:58,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:58:58,506 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:58:58,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:58 WrapperNode [2023-11-24 23:58:58,507 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:58:58,508 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:58:58,508 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:58:58,508 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:58:58,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:58" (1/1) ... [2023-11-24 23:58:58,545 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:58" (1/1) ... [2023-11-24 23:58:58,611 INFO L138 Inliner]: procedures = 29, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 391 [2023-11-24 23:58:58,611 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:58:58,614 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:58:58,614 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:58:58,614 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:58:58,625 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:58" (1/1) ... [2023-11-24 23:58:58,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:58" (1/1) ... [2023-11-24 23:58:58,635 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:58" (1/1) ... [2023-11-24 23:58:58,643 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:58" (1/1) ... [2023-11-24 23:58:58,688 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:58" (1/1) ... [2023-11-24 23:58:58,693 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:58" (1/1) ... [2023-11-24 23:58:58,710 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:58" (1/1) ... [2023-11-24 23:58:58,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:58" (1/1) ... [2023-11-24 23:58:58,719 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:58:58,720 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:58:58,734 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:58:58,734 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:58:58,736 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:58" (1/1) ... [2023-11-24 23:58:58,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:58:58,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:58:58,773 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:58:58,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:58:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:58:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-24 23:58:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:58:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-24 23:58:58,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:58:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-24 23:58:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:58:58,842 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:58:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:58:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:58:58,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:58:58,959 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:58:58,961 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:58:59,501 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:59:00,252 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:59:00,252 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:59:00,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:59:00 BoogieIcfgContainer [2023-11-24 23:59:00,255 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:59:00,260 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:59:00,260 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:59:00,263 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:59:00,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:58:58" (1/3) ... [2023-11-24 23:59:00,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c578ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:59:00, skipping insertion in model container [2023-11-24 23:59:00,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:58" (2/3) ... [2023-11-24 23:59:00,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c578ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:59:00, skipping insertion in model container [2023-11-24 23:59:00,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:59:00" (3/3) ... [2023-11-24 23:59:00,270 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-47.i [2023-11-24 23:59:00,291 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:59:00,291 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:59:00,351 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:59:00,360 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3c26adb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:59:00,360 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:59:00,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:59:00,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-24 23:59:00,374 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:00,375 INFO L195 NwaCegarLoop]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:00,376 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:59:00,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:00,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1503506411, now seen corresponding path program 1 times [2023-11-24 23:59:00,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:00,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586895030] [2023-11-24 23:59:00,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:00,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:01,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:59:01,465 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:59:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:59:02,067 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:59:02,070 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:59:02,071 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 23:59:02,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:59:02,085 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 23:59:02,090 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:59:02,135 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-11-24 23:59:02,138 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated [2023-11-24 23:59:02,138 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-24 23:59:02,138 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-11-24 23:59:02,140 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-11-24 23:59:02,140 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated [2023-11-24 23:59:02,140 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated [2023-11-24 23:59:02,141 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-11-24 23:59:02,141 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-24 23:59:02,141 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated [2023-11-24 23:59:02,141 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated [2023-11-24 23:59:02,141 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-11-24 23:59:02,141 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-11-24 23:59:02,142 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated [2023-11-24 23:59:02,142 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated [2023-11-24 23:59:02,142 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated [2023-11-24 23:59:02,143 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-24 23:59:02,143 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-24 23:59:02,144 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-11-24 23:59:02,145 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated [2023-11-24 23:59:02,145 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-24 23:59:02,146 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-24 23:59:02,146 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-11-24 23:59:02,147 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-11-24 23:59:02,147 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-11-24 23:59:02,147 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-11-24 23:59:02,148 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-11-24 23:59:02,157 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-11-24 23:59:02,158 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-24 23:59:02,158 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-24 23:59:02,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:59:02 BoogieIcfgContainer [2023-11-24 23:59:02,181 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:59:02,184 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:59:02,184 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:59:02,185 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:59:02,185 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:59:00" (3/4) ... [2023-11-24 23:59:02,188 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:59:02,190 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:59:02,191 INFO L158 Benchmark]: Toolchain (without parser) took 4138.01ms. Allocated memory was 138.4MB in the beginning and 216.0MB in the end (delta: 77.6MB). Free memory was 90.7MB in the beginning and 111.9MB in the end (delta: -21.3MB). Peak memory consumption was 57.0MB. Max. memory is 16.1GB. [2023-11-24 23:59:02,192 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 138.4MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:59:02,193 INFO L158 Benchmark]: CACSL2BoogieTranslator took 452.32ms. Allocated memory is still 138.4MB. Free memory was 90.7MB in the beginning and 76.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 23:59:02,194 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.39ms. Allocated memory is still 138.4MB. Free memory was 76.0MB in the beginning and 72.5MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:59:02,197 INFO L158 Benchmark]: Boogie Preprocessor took 105.46ms. Allocated memory is still 138.4MB. Free memory was 72.5MB in the beginning and 69.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:59:02,202 INFO L158 Benchmark]: RCFGBuilder took 1535.74ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 69.7MB in the beginning and 96.3MB in the end (delta: -26.6MB). Peak memory consumption was 37.0MB. Max. memory is 16.1GB. [2023-11-24 23:59:02,204 INFO L158 Benchmark]: TraceAbstraction took 1921.37ms. Allocated memory was 178.3MB in the beginning and 216.0MB in the end (delta: 37.7MB). Free memory was 95.2MB in the beginning and 111.9MB in the end (delta: -16.7MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2023-11-24 23:59:02,205 INFO L158 Benchmark]: Witness Printer took 5.74ms. Allocated memory is still 216.0MB. Free memory is still 111.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:59:02,211 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 138.4MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 452.32ms. Allocated memory is still 138.4MB. Free memory was 90.7MB in the beginning and 76.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.39ms. Allocated memory is still 138.4MB. Free memory was 76.0MB in the beginning and 72.5MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 105.46ms. Allocated memory is still 138.4MB. Free memory was 72.5MB in the beginning and 69.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1535.74ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 69.7MB in the beginning and 96.3MB in the end (delta: -26.6MB). Peak memory consumption was 37.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1921.37ms. Allocated memory was 178.3MB in the beginning and 216.0MB in the end (delta: 37.7MB). Free memory was 95.2MB in the beginning and 111.9MB in the end (delta: -16.7MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. * Witness Printer took 5.74ms. Allocated memory is still 216.0MB. Free memory is still 111.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 65, overapproximation of someUnaryDOUBLEoperation at line 67. Possible FailurePath: [L33] unsigned char isInitial = 0; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L45] signed long int last_1_WrapperStruct0_var_1_12 = 8; [L99] isInitial = 1 [L100] FCALL initially() [L101] COND TRUE 1 [L102] CALL updateLastVariables() [L92] EXPR WrapperStruct0.var_1_12 [L92] last_1_WrapperStruct0_var_1_12 = WrapperStruct0.var_1_12 [L102] RET updateLastVariables() [L103] CALL updateVariables() [L76] WrapperStruct0.var_1_8 = __VERIFIER_nondet_double() [L77] EXPR WrapperStruct0.var_1_8 [L77] EXPR WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F [L77] EXPR WrapperStruct0.var_1_8 [L77] EXPR WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F [L77] EXPR (WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F) || (WrapperStruct0.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_8 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L77] CALL assume_abort_if_not((WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F) || (WrapperStruct0.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not((WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F) || (WrapperStruct0.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L78] WrapperStruct0.var_1_10 = __VERIFIER_nondet_char() [L79] EXPR WrapperStruct0.var_1_10 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L79] CALL assume_abort_if_not(WrapperStruct0.var_1_10 >= -63) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(WrapperStruct0.var_1_10 >= -63) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L80] EXPR WrapperStruct0.var_1_10 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L80] CALL assume_abort_if_not(WrapperStruct0.var_1_10 <= 63) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(WrapperStruct0.var_1_10 <= 63) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L81] WrapperStruct0.var_1_11 = __VERIFIER_nondet_char() [L82] EXPR WrapperStruct0.var_1_11 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L82] CALL assume_abort_if_not(WrapperStruct0.var_1_11 >= -63) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(WrapperStruct0.var_1_11 >= -63) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L83] EXPR WrapperStruct0.var_1_11 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L83] CALL assume_abort_if_not(WrapperStruct0.var_1_11 <= 63) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(WrapperStruct0.var_1_11 <= 63) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L84] WrapperStruct0.var_1_13 = __VERIFIER_nondet_uchar() [L85] EXPR WrapperStruct0.var_1_13 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L85] CALL assume_abort_if_not(WrapperStruct0.var_1_13 >= 0) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(WrapperStruct0.var_1_13 >= 0) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L86] EXPR WrapperStruct0.var_1_13 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L86] CALL assume_abort_if_not(WrapperStruct0.var_1_13 <= 1) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(WrapperStruct0.var_1_13 <= 1) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L87] WrapperStruct0.var_1_14 = __VERIFIER_nondet_uchar() [L88] EXPR WrapperStruct0.var_1_14 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L88] CALL assume_abort_if_not(WrapperStruct0.var_1_14 >= 0) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(WrapperStruct0.var_1_14 >= 0) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L89] EXPR WrapperStruct0.var_1_14 VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L89] CALL assume_abort_if_not(WrapperStruct0.var_1_14 <= 1) VAL [WrapperStruct0={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(WrapperStruct0.var_1_14 <= 1) VAL [WrapperStruct0={4:0}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L103] RET updateVariables() [L104] CALL step() [L49] COND FALSE !(-4 > last_1_WrapperStruct0_var_1_12) [L54] EXPR WrapperStruct0.var_1_10 [L54] WrapperStruct0.var_1_9 = WrapperStruct0.var_1_10 [L56] EXPR WrapperStruct0.var_1_13 [L56] unsigned char stepLocal_0 = ! WrapperStruct0.var_1_13; [L57] stepLocal_0 || WrapperStruct0.var_1_14 [L57] EXPR WrapperStruct0.var_1_14 [L57] stepLocal_0 || WrapperStruct0.var_1_14 [L57] COND FALSE !(stepLocal_0 || WrapperStruct0.var_1_14) [L64] EXPR WrapperStruct0.var_1_8 [L64] WrapperStruct0.var_1_15 = WrapperStruct0.var_1_8 [L65] EXPR WrapperStruct0.var_1_15 [L65] EXPR WrapperStruct0.var_1_15 [L65] COND TRUE WrapperStruct0.var_1_15 <= WrapperStruct0.var_1_15 [L66] EXPR WrapperStruct0.var_1_12 [L66] EXPR WrapperStruct0.var_1_12 [L66] EXPR WrapperStruct0.var_1_12 [L66] EXPR WrapperStruct0.var_1_9 [L66] COND TRUE (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_12) >= (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_9) [L67] EXPR WrapperStruct0.var_1_8 [L67] EXPR ((WrapperStruct0.var_1_8) < 0 ) ? -(WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_8) [L67] EXPR WrapperStruct0.var_1_8 [L67] EXPR ((WrapperStruct0.var_1_8) < 0 ) ? -(WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_8) [L67] WrapperStruct0.var_1_1 = ((((WrapperStruct0.var_1_8) < 0 ) ? -(WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_8))) [L104] RET step() [L105] CALL, EXPR property() [L95] EXPR WrapperStruct0.var_1_15 [L95] EXPR WrapperStruct0.var_1_15 [L95] EXPR (WrapperStruct0.var_1_15 <= WrapperStruct0.var_1_15) ? (((WrapperStruct0.var_1_12 + WrapperStruct0.var_1_12) >= (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_1 == ((double) ((((WrapperStruct0.var_1_8) < 0 ) ? -(WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_8))))) : 1) : ((WrapperStruct0.var_1_12 > WrapperStruct0.var_1_9) ? (WrapperStruct0.var_1_1 == ((double) WrapperStruct0.var_1_8)) : 1) [L95] EXPR WrapperStruct0.var_1_12 [L95] EXPR WrapperStruct0.var_1_9 [L95] EXPR (WrapperStruct0.var_1_12 > WrapperStruct0.var_1_9) ? (WrapperStruct0.var_1_1 == ((double) WrapperStruct0.var_1_8)) : 1 [L95] EXPR WrapperStruct0.var_1_1 [L95] EXPR WrapperStruct0.var_1_8 [L95] EXPR (WrapperStruct0.var_1_12 > WrapperStruct0.var_1_9) ? (WrapperStruct0.var_1_1 == ((double) WrapperStruct0.var_1_8)) : 1 [L95] EXPR (WrapperStruct0.var_1_15 <= WrapperStruct0.var_1_15) ? (((WrapperStruct0.var_1_12 + WrapperStruct0.var_1_12) >= (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_1 == ((double) ((((WrapperStruct0.var_1_8) < 0 ) ? -(WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_8))))) : 1) : ((WrapperStruct0.var_1_12 > WrapperStruct0.var_1_9) ? (WrapperStruct0.var_1_1 == ((double) WrapperStruct0.var_1_8)) : 1) [L95] EXPR ((WrapperStruct0.var_1_15 <= WrapperStruct0.var_1_15) ? (((WrapperStruct0.var_1_12 + WrapperStruct0.var_1_12) >= (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_1 == ((double) ((((WrapperStruct0.var_1_8) < 0 ) ? -(WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_8))))) : 1) : ((WrapperStruct0.var_1_12 > WrapperStruct0.var_1_9) ? (WrapperStruct0.var_1_1 == ((double) WrapperStruct0.var_1_8)) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? (WrapperStruct0.var_1_9 == ((signed char) ((((WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11) < 0 ) ? -(WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11) : (WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11))))) : 1) : (WrapperStruct0.var_1_9 == ((signed char) WrapperStruct0.var_1_10))) [L95] EXPR (((WrapperStruct0.var_1_15 <= WrapperStruct0.var_1_15) ? (((WrapperStruct0.var_1_12 + WrapperStruct0.var_1_12) >= (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_1 == ((double) ((((WrapperStruct0.var_1_8) < 0 ) ? -(WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_8))))) : 1) : ((WrapperStruct0.var_1_12 > WrapperStruct0.var_1_9) ? (WrapperStruct0.var_1_1 == ((double) WrapperStruct0.var_1_8)) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? (WrapperStruct0.var_1_9 == ((signed char) ((((WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11) < 0 ) ? -(WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11) : (WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11))))) : 1) : (WrapperStruct0.var_1_9 == ((signed char) WrapperStruct0.var_1_10)))) && (((! WrapperStruct0.var_1_13) || WrapperStruct0.var_1_14) ? ((! WrapperStruct0.var_1_14) ? (WrapperStruct0.var_1_12 == ((signed long int) (((((((WrapperStruct0.var_1_9) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_9) : (WrapperStruct0.var_1_9))) < 0 ) ? -((((WrapperStruct0.var_1_9) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_9) : (WrapperStruct0.var_1_9))) : ((((WrapperStruct0.var_1_9) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_9) : (WrapperStruct0.var_1_9))))))) : (WrapperStruct0.var_1_12 == ((signed long int) WrapperStruct0.var_1_9))) : 1) [L95] EXPR ((((WrapperStruct0.var_1_15 <= WrapperStruct0.var_1_15) ? (((WrapperStruct0.var_1_12 + WrapperStruct0.var_1_12) >= (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_1 == ((double) ((((WrapperStruct0.var_1_8) < 0 ) ? -(WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_8))))) : 1) : ((WrapperStruct0.var_1_12 > WrapperStruct0.var_1_9) ? (WrapperStruct0.var_1_1 == ((double) WrapperStruct0.var_1_8)) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? (WrapperStruct0.var_1_9 == ((signed char) ((((WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11) < 0 ) ? -(WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11) : (WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11))))) : 1) : (WrapperStruct0.var_1_9 == ((signed char) WrapperStruct0.var_1_10)))) && (((! WrapperStruct0.var_1_13) || WrapperStruct0.var_1_14) ? ((! WrapperStruct0.var_1_14) ? (WrapperStruct0.var_1_12 == ((signed long int) (((((((WrapperStruct0.var_1_9) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_9) : (WrapperStruct0.var_1_9))) < 0 ) ? -((((WrapperStruct0.var_1_9) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_9) : (WrapperStruct0.var_1_9))) : ((((WrapperStruct0.var_1_9) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_9) : (WrapperStruct0.var_1_9))))))) : (WrapperStruct0.var_1_12 == ((signed long int) WrapperStruct0.var_1_9))) : 1)) && (WrapperStruct0.var_1_15 == ((double) WrapperStruct0.var_1_8)) [L95-L96] return ((((WrapperStruct0.var_1_15 <= WrapperStruct0.var_1_15) ? (((WrapperStruct0.var_1_12 + WrapperStruct0.var_1_12) >= (WrapperStruct0.var_1_12 + WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_1 == ((double) ((((WrapperStruct0.var_1_8) < 0 ) ? -(WrapperStruct0.var_1_8) : (WrapperStruct0.var_1_8))))) : 1) : ((WrapperStruct0.var_1_12 > WrapperStruct0.var_1_9) ? (WrapperStruct0.var_1_1 == ((double) WrapperStruct0.var_1_8)) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? (WrapperStruct0.var_1_9 == ((signed char) ((((WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11) < 0 ) ? -(WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11) : (WrapperStruct0.var_1_10 + WrapperStruct0.var_1_11))))) : 1) : (WrapperStruct0.var_1_9 == ((signed char) WrapperStruct0.var_1_10)))) && (((! WrapperStruct0.var_1_13) || WrapperStruct0.var_1_14) ? ((! WrapperStruct0.var_1_14) ? (WrapperStruct0.var_1_12 == ((signed long int) (((((((WrapperStruct0.var_1_9) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_9) : (WrapperStruct0.var_1_9))) < 0 ) ? -((((WrapperStruct0.var_1_9) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_9) : (WrapperStruct0.var_1_9))) : ((((WrapperStruct0.var_1_9) < (WrapperStruct0.var_1_9)) ? (WrapperStruct0.var_1_9) : (WrapperStruct0.var_1_9))))))) : (WrapperStruct0.var_1_12 == ((signed long int) WrapperStruct0.var_1_9))) : 1)) && (WrapperStruct0.var_1_15 == ((double) WrapperStruct0.var_1_8)) ; [L105] RET, EXPR property() [L105] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct0={4:0}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L19] reach_error() VAL [WrapperStruct0={4:0}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct0_var_1_12=8] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 1, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 23:59:02,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b982617b4eafec7cbb1a277d4cd75e5591003436ed1218fbd6f7cc65704fea2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:59:05,021 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:59:05,145 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-24 23:59:05,153 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:59:05,154 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:59:05,196 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:59:05,197 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:59:05,197 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:59:05,198 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:59:05,205 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:59:05,206 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:59:05,206 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:59:05,207 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:59:05,208 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:59:05,209 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:59:05,209 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:59:05,210 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:59:05,211 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:59:05,211 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:59:05,212 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:59:05,213 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:59:05,213 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:59:05,214 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:59:05,214 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:59:05,214 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:59:05,215 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:59:05,215 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:59:05,215 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:59:05,216 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:59:05,216 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:59:05,218 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:59:05,218 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:59:05,218 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:59:05,218 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:59:05,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:59:05,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:59:05,219 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:59:05,219 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:59:05,220 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:59:05,220 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:59:05,221 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:59:05,221 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:59:05,221 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:59:05,221 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:59:05,222 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b982617b4eafec7cbb1a277d4cd75e5591003436ed1218fbd6f7cc65704fea2 [2023-11-24 23:59:05,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:59:05,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:59:05,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:59:05,683 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:59:05,684 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:59:05,685 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-47.i [2023-11-24 23:59:08,881 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:59:09,192 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:59:09,192 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-47.i [2023-11-24 23:59:09,205 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/data/8c0077ef3/c856f2ad3568452d9ea30b1bd49cc036/FLAG28e047c8f [2023-11-24 23:59:09,223 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/data/8c0077ef3/c856f2ad3568452d9ea30b1bd49cc036 [2023-11-24 23:59:09,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:59:09,231 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:59:09,232 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:59:09,233 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:59:09,238 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:59:09,239 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:59:09" (1/1) ... [2023-11-24 23:59:09,240 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@278beec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:09, skipping insertion in model container [2023-11-24 23:59:09,240 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:59:09" (1/1) ... [2023-11-24 23:59:09,283 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:59:09,495 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-47.i[916,929] [2023-11-24 23:59:09,582 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:59:09,607 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:59:09,626 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-47.i[916,929] [2023-11-24 23:59:09,709 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:59:09,738 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:59:09,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:09 WrapperNode [2023-11-24 23:59:09,739 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:59:09,740 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:59:09,740 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:59:09,740 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:59:09,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:09" (1/1) ... [2023-11-24 23:59:09,767 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:09" (1/1) ... [2023-11-24 23:59:09,807 INFO L138 Inliner]: procedures = 33, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 389 [2023-11-24 23:59:09,807 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:59:09,808 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:59:09,809 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:59:09,809 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:59:09,825 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:09" (1/1) ... [2023-11-24 23:59:09,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:09" (1/1) ... [2023-11-24 23:59:09,835 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:09" (1/1) ... [2023-11-24 23:59:09,835 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:09" (1/1) ... [2023-11-24 23:59:09,887 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:09" (1/1) ... [2023-11-24 23:59:09,892 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:09" (1/1) ... [2023-11-24 23:59:09,910 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:09" (1/1) ... [2023-11-24 23:59:09,913 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:09" (1/1) ... [2023-11-24 23:59:09,919 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:59:09,920 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:59:09,921 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:59:09,921 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:59:09,922 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:09" (1/1) ... [2023-11-24 23:59:09,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:59:09,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:59:09,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:59:10,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:59:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:59:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-11-24 23:59:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-11-24 23:59:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-24 23:59:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:59:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-24 23:59:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2023-11-24 23:59:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 23:59:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:59:10,030 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:59:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:59:10,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:59:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-24 23:59:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 23:59:10,154 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:59:10,157 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:59:10,901 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:59:10,970 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:59:10,971 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:59:10,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:59:10 BoogieIcfgContainer [2023-11-24 23:59:10,972 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:59:10,974 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:59:10,975 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:59:10,978 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:59:10,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:59:09" (1/3) ... [2023-11-24 23:59:10,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67fca81b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:59:10, skipping insertion in model container [2023-11-24 23:59:10,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:59:09" (2/3) ... [2023-11-24 23:59:10,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67fca81b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:59:10, skipping insertion in model container [2023-11-24 23:59:10,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:59:10" (3/3) ... [2023-11-24 23:59:10,982 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-47.i [2023-11-24 23:59:11,004 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:59:11,004 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:59:11,056 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:59:11,064 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@420d7700, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:59:11,065 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:59:11,069 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 77 states have (on average 1.5064935064935066) internal successors, (116), 78 states have internal predecessors, (116), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:59:11,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-24 23:59:11,083 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:11,084 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:11,084 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:59:11,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:11,091 INFO L85 PathProgramCache]: Analyzing trace with hash 246258251, now seen corresponding path program 1 times [2023-11-24 23:59:11,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:59:11,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896357296] [2023-11-24 23:59:11,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:11,108 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:59:11,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:59:11,112 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:59:11,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-24 23:59:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:11,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:59:11,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:59:11,618 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-24 23:59:11,619 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:59:11,620 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:59:11,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896357296] [2023-11-24 23:59:11,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896357296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:11,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:11,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:59:11,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343990155] [2023-11-24 23:59:11,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:11,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:59:11,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:59:11,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:59:11,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:59:11,679 INFO L87 Difference]: Start difference. First operand has 89 states, 77 states have (on average 1.5064935064935066) internal successors, (116), 78 states have internal predecessors, (116), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:59:11,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:11,941 INFO L93 Difference]: Finished difference Result 201 states and 314 transitions. [2023-11-24 23:59:11,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:59:11,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 79 [2023-11-24 23:59:11,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:11,959 INFO L225 Difference]: With dead ends: 201 [2023-11-24 23:59:11,959 INFO L226 Difference]: Without dead ends: 113 [2023-11-24 23:59:11,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:59:11,970 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 90 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:11,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 523 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:59:11,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-24 23:59:12,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 90. [2023-11-24 23:59:12,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 79 states have (on average 1.4430379746835442) internal successors, (114), 79 states have internal predecessors, (114), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:59:12,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 132 transitions. [2023-11-24 23:59:12,042 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 132 transitions. Word has length 79 [2023-11-24 23:59:12,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:12,044 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 132 transitions. [2023-11-24 23:59:12,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:59:12,044 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 132 transitions. [2023-11-24 23:59:12,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-24 23:59:12,048 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:12,049 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:12,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:59:12,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:59:12,252 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:59:12,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:12,253 INFO L85 PathProgramCache]: Analyzing trace with hash 849202585, now seen corresponding path program 1 times [2023-11-24 23:59:12,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:59:12,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711582411] [2023-11-24 23:59:12,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:12,255 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:59:12,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:59:12,256 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:59:12,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-24 23:59:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:12,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:59:12,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:59:12,594 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-24 23:59:12,594 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:59:12,595 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:59:12,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1711582411] [2023-11-24 23:59:12,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1711582411] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:12,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:12,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:59:12,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614932862] [2023-11-24 23:59:12,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:12,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:59:12,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:59:12,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:59:12,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:59:12,606 INFO L87 Difference]: Start difference. First operand 90 states and 132 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:59:12,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:12,752 INFO L93 Difference]: Finished difference Result 188 states and 275 transitions. [2023-11-24 23:59:12,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 23:59:12,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 79 [2023-11-24 23:59:12,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:12,757 INFO L225 Difference]: With dead ends: 188 [2023-11-24 23:59:12,757 INFO L226 Difference]: Without dead ends: 99 [2023-11-24 23:59:12,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:59:12,759 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 10 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:12,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 476 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:59:12,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-24 23:59:12,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 94. [2023-11-24 23:59:12,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 83 states have (on average 1.4216867469879517) internal successors, (118), 83 states have internal predecessors, (118), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-24 23:59:12,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 136 transitions. [2023-11-24 23:59:12,785 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 136 transitions. Word has length 79 [2023-11-24 23:59:12,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:12,788 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 136 transitions. [2023-11-24 23:59:12,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:59:12,789 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 136 transitions. [2023-11-24 23:59:12,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-24 23:59:12,797 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:12,797 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:12,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-24 23:59:13,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:59:13,004 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:59:13,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:13,005 INFO L85 PathProgramCache]: Analyzing trace with hash 849262167, now seen corresponding path program 1 times [2023-11-24 23:59:13,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:59:13,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876022074] [2023-11-24 23:59:13,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:13,006 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:59:13,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:59:13,008 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:59:13,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-24 23:59:13,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:13,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 23:59:13,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:59:13,446 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:59:13,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 14 [2023-11-24 23:59:13,491 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-24 23:59:13,491 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:59:13,492 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:59:13,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876022074] [2023-11-24 23:59:13,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [876022074] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:13,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:13,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:59:13,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268831124] [2023-11-24 23:59:13,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:13,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:59:13,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:59:13,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:59:13,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:59:13,495 INFO L87 Difference]: Start difference. First operand 94 states and 136 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:59:15,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:15,233 INFO L93 Difference]: Finished difference Result 339 states and 491 transitions. [2023-11-24 23:59:15,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 23:59:15,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 79 [2023-11-24 23:59:15,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:15,239 INFO L225 Difference]: With dead ends: 339 [2023-11-24 23:59:15,239 INFO L226 Difference]: Without dead ends: 246 [2023-11-24 23:59:15,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:59:15,248 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 196 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:15,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 334 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-24 23:59:15,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-11-24 23:59:15,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 175. [2023-11-24 23:59:15,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 154 states have (on average 1.4025974025974026) internal successors, (216), 154 states have internal predecessors, (216), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-24 23:59:15,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 252 transitions. [2023-11-24 23:59:15,272 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 252 transitions. Word has length 79 [2023-11-24 23:59:15,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:15,273 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 252 transitions. [2023-11-24 23:59:15,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:59:15,274 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 252 transitions. [2023-11-24 23:59:15,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-24 23:59:15,276 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:15,276 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:15,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-24 23:59:15,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:59:15,482 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:59:15,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:15,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1550326745, now seen corresponding path program 1 times [2023-11-24 23:59:15,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:59:15,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2132305581] [2023-11-24 23:59:15,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:15,484 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:59:15,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:59:15,486 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:59:15,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-24 23:59:15,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:15,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:59:15,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:59:15,731 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-24 23:59:15,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:59:15,731 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:59:15,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2132305581] [2023-11-24 23:59:15,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2132305581] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:15,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:15,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:59:15,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513911765] [2023-11-24 23:59:15,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:15,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:59:15,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:59:15,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:59:15,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:59:15,735 INFO L87 Difference]: Start difference. First operand 175 states and 252 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:59:15,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:15,860 INFO L93 Difference]: Finished difference Result 404 states and 584 transitions. [2023-11-24 23:59:15,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:59:15,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 79 [2023-11-24 23:59:15,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:15,865 INFO L225 Difference]: With dead ends: 404 [2023-11-24 23:59:15,865 INFO L226 Difference]: Without dead ends: 230 [2023-11-24 23:59:15,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:59:15,867 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 81 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:15,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 534 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:59:15,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2023-11-24 23:59:15,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 176. [2023-11-24 23:59:15,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 155 states have (on average 1.4) internal successors, (217), 155 states have internal predecessors, (217), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-24 23:59:15,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 253 transitions. [2023-11-24 23:59:15,901 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 253 transitions. Word has length 79 [2023-11-24 23:59:15,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:15,902 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 253 transitions. [2023-11-24 23:59:15,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-24 23:59:15,902 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 253 transitions. [2023-11-24 23:59:15,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-24 23:59:15,904 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:15,905 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:15,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-24 23:59:16,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:59:16,110 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:59:16,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:16,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1860379417, now seen corresponding path program 1 times [2023-11-24 23:59:16,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:59:16,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217723806] [2023-11-24 23:59:16,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:16,112 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:59:16,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:59:16,113 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:59:16,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0190f7ef-8996-4ef4-b43a-a74ff3e34c6e/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-24 23:59:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:16,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-24 23:59:16,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:59:16,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-24 23:59:17,051 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:59:17,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 132 treesize of output 59 [2023-11-24 23:59:17,265 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:59:17,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 127 treesize of output 69 [2023-11-24 23:59:17,673 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:59:17,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 142 treesize of output 72 [2023-11-24 23:59:17,989 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:59:17,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 82 [2023-11-24 23:59:18,512 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:59:18,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 85 [2023-11-24 23:59:18,666 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:59:18,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 210 treesize of output 126 [2023-11-24 23:59:19,020 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:59:19,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 228 treesize of output 150 [2023-11-24 23:59:21,327 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:59:21,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 330 treesize of output 116 [2023-11-24 23:59:21,532 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-24 23:59:21,532 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:59:21,533 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:59:21,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217723806] [2023-11-24 23:59:21,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [217723806] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:21,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:21,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-24 23:59:21,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016354115] [2023-11-24 23:59:21,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:21,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-24 23:59:21,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:59:21,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-24 23:59:21,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=99, Unknown=1, NotChecked=0, Total=132 [2023-11-24 23:59:21,535 INFO L87 Difference]: Start difference. First operand 176 states and 253 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 11 states have internal predecessors, (43), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-24 23:59:25,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:59:29,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:59:31,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:59:33,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:59:38,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:59:40,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:59:42,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:59:50,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:59:52,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:59:54,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]